Setting the next hop to a null0 interface, Setting next hop vlan flooding – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

Page 791

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Multi-Service IronWare Routing Configuration Guide

763

53-1003033-02

Configuring an IPv6 PBR policy

NOTE

Do not use the IPv6 link-local address, unique local address, or the IPv6 address of the router as the
IPv6 next hop address.

Setting the next hop to a Null0 interface
Sending traffic to a NullO interface drops the traffic. You can set the next hop to a Null0 interface
as shown in the following example.

Brocade(config)#route-map v6pbr permit 10

Brocade(config-routemap v6pbr)#match ipv6 address v6acl

Brocade(config-routemap v6pbr)#set interface null0

Syntax: [no] set interface null0

Setting next hop VLAN flooding
Using the set next-hop-flood-vlan command, matched traffic can be flooded on all ports of the
VLAN except the incoming physical port. Any IPv6 PBR policy that contains the set
next-hop-flood-vlan command applies to both routed and switched traffic. If any instance in an IPv6
PBR route map contains the set next-hop-flood-vlan command, all instances of that route map will
be applied to both routed and switched traffic.

The following example floods all traffic matched from ACL 101 on all ports of VLAN 10 except the
incoming physical port.

Brocade(config)# access-list for_pbr_match_src permit ipv6 any any

Brocade(config)# route-map calea permit 10

Brocade(config-routemap calea)# match ipv6 address for_pbr_match_src

Brocade(config-routemap calea)# set next-hop-flood-vlan 10

Brocade(config-routemap calea)# exit

Syntax: [no] set next-hop-flood-vlan vlan-id [ outgoing-da mac-address ]

If the VLAN specified by the vlan-id variable is not configured, the IPv6 PBR route map set
statement will fall through to the next configured set statement. If no valid next hop is available, the
packet is forwarded as per the Layer 2 or Layer 3 forwarding decision. If the VLAN specified by the
vlan-id variable has no valid outgoing ports (such as when all ports in the VLAN are down or when
the VLAN is empty), matching packets will be dropped.

The outgoing-da option directs the device to send packets flooded to the ports on the VLAN to carry
the destination MAC address specified in the mac-address variable.

If the destination MAC address is not set using the outgoing-da option, the destination address is
set as described in

Table 167

.

The Brocade NetIron CES and Brocade NetIron CER exhibit different behavior which is described in
Table 168.

The no set next-hop-flood-vlan vlan-id outgoing-da mac-address command deletes only the
outgoing-da option from the set statement. It does not delete the set statement itself. To delete the
set statement, specify the no set next-hop-flood-vlan vlan-id command.

TABLE 167

Destination address on VLAN flooded packets

Incoming port

Outgoing port

Routed traffic

Switched traffic

Ethernet

Ethernet

Replaced Destination Address

Original Destination Address
from Incoming Packet

POS

Ethernet

Replaced Destination Address

N/A

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